Main Page | See live article | Alphabetical index To help compare different orders of magnitude we list here masses between 1020 kilograms (100 petatonnes) and 1021 kilograms (1 exatonne). See also masses of other orders of magnitude. Lighter masses 8.7×1020 kilograms - mass of 1 Ceres Heavier masses See also: Orders of magnitude, conversion of units External link Conversion Calculator for Units of MASS (& Weight) - (requires JavaScript) This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.